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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Question: A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requir
Define Outer join Outer join - If there are any type of values in the one table that do not have corresponding value(s) in the other, in an equi-join which will not be selected
State about the Activity Diagram Activity diagrams show flow from one activity to other. It is an ongoing non atomic execution within a state machine. Activity finally results
does tables are called relations
what is Nested relational model? Explain with examples.
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
The File Based System File based systems are an early attempt to computerise the manual filing system. For example, a manual file can be set up to hold all the correspondence r
What is OCR? OCR (Optical Character Recognition) is a technology that enables you to change different types of machine-readable documents, like scanned paper documents, PDF fil
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